Henry cook



(No Model.)

' H COOK.

} INEALER FOR ANZBSTHETI'GS.

No. 294,585. Patented Mar, 4, 1884 WITNESSE To aZZ whom it may'concern:

I UN TED STATES HENRY COOK, OF LEADVILLE, COLORADO.

PATENT OFFIcE.

INHALER FOR A NIESTl-IET ICS.

SPECIFICATION forming part of Letters Patent No. 294,585, dated March 4, 1884.

' Application filed September 1, 1883. (No model.)

Be it known that I, HENRY 000K, a citizen of the United States, residing at Leadville, in the county of Lake andstate of Colorado, have invented a new and useful Inhaler and Respirator, of which the following is a specification.

The invention relates to a more convenient and reliable method of applying chloroform or other liquid anaesthetics that are inhaled by the patient in a vaporous state, substantially as herein described, and as illustrated by-the accompanying drawings, in which Figure 1 represents the apparatus in full and the relations of the different parts to each other. Fig. 2 represents a square view of the spray-arrester in connection with the savingreservoir bulb d.

In both figures similar letters indicate similar parts.

Referring to the letters, 6 is the bottle containing the liquid to be administered, which rests upon the bottom 70, which also sustains the hood a, supported by several light wires, M and M, as indicated. 1' is the mouth of the hood, that fits upon the face of the patient. 9 is a bulb for gathering air, and an air-reservoir for maintaining a constant air-pressure, which reservoiris of auxiliary character, but is not essentially requisite. h is a handle to hold the apparatus, inclosing the outer portion of the bulb g. 1) indicates the spray issuing from the mouth of the tube a, which extends into and nearlyto the bottom of containing-bottle. O is aspray-arrester. dis asaving-reservoir; f, a small stop-cock connecting the reservoir d with the'bottle e. Z is an apron or door in the bottom 70, for removing the bottle. m is a support for holding the bottle in place. v

The handle h, which is rigidly secured to wire M, may be made of wire-gauze or other ordinary material, and is provided with a boat-shaped recess or socket for reception of the bulb g, which is secured therein by means of bands H, as shown.

The apparatus is operated as follows: The mouth of the hood a is placed over the nose and mouth of the patient, the operator holding the apparatus by the handle h, which enables him to work the bulb g, by which the liquid from the bottle a is thrown forward on the principle of an ordinary spraying-bottle or atomizer. Theheavier portion of the spray is arrested by the plate 0, by which the liquid is conducted by its channel into the table communicating with the saving-bulb d, from which the accumulated liquid is subsequently run into the bottle e by the stop-cock f being opened. The vapor arising from the spray fills the hood a, which is everywhere inclosed except the portion over the patients face 1'. By this arrangement none of the material is wasted, nor does the vapor escape into the air, but is so confined as to be efficiently administered; but a more important advantage consists in so mixing atmospheric air with the anaesthetic as to continually preserve the proper proportions of the two, so that the administration is safe and effective, and free from the danger commonly attending the anzesthetizing of patients.

Having fully described my invention and in what manner the same is to be operated, what I claim, and desire to secure by Letters Patent, is-

1. In an inhaler and respirator, the combination of the hood a, spray-arrester O, bulb d, with stop-cock f, and bottle 6, substantially as shown, and for the purpose described.

2. The apparatus specified for administer ing the fumes or vapor of an anaesthetic combined with atmospheric air, consisting of thebottle 6, having tube 02, bulb g, secured to handle by bands H, bulb j, hood a, spray-arrester 0, and bulb d, with stop-cock f, substantially as shown and described.

3. The combination of the bulbs g and 'j,

spray-arrester O, bulb d, stopcock f, and bottle 6, having tube a, substantially as shown and described.

In testimony whereof I affiX my signature in presence of two witnesses.

HENRY COOK. WVitnesses:

O. H. MURRAY, 1. S. WEYAND. 

